My old speakers were a pair of m60ti's, and I upgraded to the LFR's. I have the same power for the LFR's as I did the m60's. To be honest both speakers play at my desired level (90db) quite easily. I would say that I like the LFR's better over all, mainly due to their omni directional design. Right now my DSP is in Canada for a re-program. So, I'm just running the front drivers. Going off of my current set up (front LFR drivers and dual EP600's). There isn't a quantifiable difference between my current set up and the M60's + a pair EP600's.